Finding the Fourth Proportional to 60,860, 91,301.52 and 28,028

Step by Step Solution

1. Step 1: Write the proportion equation
   60,860 : 91,301.52 = 28,028 : x
2. Step 2: Convert to fraction form
   60,860/91,301.52 = 28,028/x
3. Step 3: Cross multiply
   60,860x = 91,301.52 × 28,028
4. Step 4: Simplify right side
   60,860x = 2,558,999,002.56
5. Step 5: Solve for x
   x = 2,558,999,002.56/60,860
6. Step 6: Final answer
   x = 42,047.31